The Curtain Driver El is compatible with a wide range of smart home ecosystems and voice assistants. Apple HomeKit, Amazon Alexa, Google Assistant, IFTTT and more are supported. No tools are needed. Just mount the Curtain Driver El onto the existing curtain rails and hide it behind the curtain, then follow the guidance and finish the setup on the Aqara Home app. The cutting-edge energy-saving technologies and the huge 6000mAF battery are chargeable to last for up to a year. The most modern and versatile Type-C port is used for charging or even powering the device constantly. Track Version supports U rails and I rails